50 Pack Of 3-PLY Face Masks For $3.49 From Amazon Use code: 50ANNORBL 【General use】Size for adult: 6.9 x 3.7 inch / 17.5 x 9.5 cm. Safe and reliable 3-ply structure, the middle filter layer is polypropylene spunbonded fabric (melt-blown) 【Disposable masks】Experts advice wearing it for up to 4 hours. Should be Disposed off after […]